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119987 = 761281
BaseRepresentation
bin11101010010110011
320002120222
4131102303
512314422
62323255
71006550
oct352263
9202528
10119987
118216a
125952b
13427ca
1431a27
1525842
hex1d4b3

119987 has 8 divisors (see below), whose sum is σ = 139872. Its totient is φ = 100800.

The previous prime is 119983. The next prime is 119993. The reversal of 119987 is 789911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 119987 - 22 = 119983 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 119987.

It is not an unprimeable number, because it can be changed into a prime (119981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287 + ... + 567.

It is an arithmetic number, because the mean of its divisors is an integer number (17484).

2119987 is an apocalyptic number.

119987 is a deficient number, since it is larger than the sum of its proper divisors (19885).

119987 is an equidigital number, since it uses as much as digits as its factorization.

119987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 4536, while the sum is 35.

The square root of 119987 is about 346.3913971218. The cubic root of 119987 is about 49.3224602691.

The spelling of 119987 in words is "one hundred nineteen thousand, nine hundred eighty-seven".

Divisors: 1 7 61 281 427 1967 17141 119987